// import "@/utils/sso";
import Cookies from "js-cookie";
import { getConfig } from "@/config";
import NProgress from "@/utils/progress";
import { buildHierarchyTree } from "@/utils/tree";
import remainingRouter from "./modules/remaining";
import { useMultiTagsStoreHook } from "@/store/modules/multiTags";
import { usePermissionStoreHook } from "@/store/modules/permission";
import { isUrl, openLink, storageLocal, isAllEmpty } from "@pureadmin/utils";
import {
	ascending,
	getTopMenu,
	initRouter,
	isOneOfArray,
	getHistoryMode,
	findRouteByPath,
	handleAliveRoute,
	formatTwoStageRoutes,
	formatFlatteningRoutes
} from "./utils";
import {
	type Router,
	createRouter,
	type RouteRecordRaw,
	type RouteComponent
} from "vue-router";
import {
	type DataInfo,
	userKey,
	removeToken,
	multipleTabsKey
} from "@/utils/auth";

/** 自动导入全部静态路由，无需再手动引入！匹配 src/router/modules 目录（任何嵌套级别）中具有 .ts 扩展名的所有文件，除了 remaining.ts 文件
 * 如何匹配所有文件请看：https://github.com/mrmlnc/fast-glob#basic-syntax
 * 如何排除文件请看：https://cn.vitejs.dev/guide/features.html#negative-patterns
 */
const modules : Record<string, any> = import.meta.glob(
	["./modules/**/*.ts",
	"!./modules/**/remaining.ts",
	"!./modules/**/version.ts",
	],
	{
		eager: true
	}
);
/** 原始静态路由（未做任何处理） */
const routes = [];
Object.keys(modules).forEach(key => {
	routes.push(modules[key].default);
});
/** 导出处理后的静态路由（三级及以上的路由全部拍成二级） */
export const constantRoutes : Array<RouteRecordRaw> = formatTwoStageRoutes(
	formatFlatteningRoutes(buildHierarchyTree(ascending(routes.flat(Infinity))))
);

/** 用于渲染菜单，保持原始层级 */
export const constantMenus : Array<RouteComponent> = ascending(
	routes.flat(Infinity)
).concat(...remainingRouter);

/** 不参与菜单的路由 */
export const remainingPaths = Object.keys(remainingRouter).map(v => {
	return remainingRouter[v].path;
});

/** 创建路由实例 */
export const router : Router = createRouter({
	history: getHistoryMode(import.meta.env.VITE_ROUTER_HISTORY),
	routes: constantRoutes.concat(...(remainingRouter as any)),
	strict: true,
	scrollBehavior(to, from, savedPosition) {
		return new Promise(resolve => {
			if (savedPosition) {
				return savedPosition;
			} else {
				if (from.meta.saveSrollTop) {
					const top : number =
						document.documentElement.scrollTop || document.body.scrollTop;
					resolve({ left: 0, top });
				}
			}
		});
	}
});

/** 重置路由 */
export function resetRouter() {
	router.getRoutes().forEach(route => {
		const { name, meta } = route;
		if (name && router.hasRoute(name) && meta?.backstage) {
			router.removeRoute(name);
			router.options.routes = formatTwoStageRoutes(
				formatFlatteningRoutes(
					buildHierarchyTree(ascending(routes.flat(Infinity)))
				)
			);
		}
	});
	usePermissionStoreHook().clearAllCachePage();
}

/** 路由白名单 */
const whiteList = ["/login"];

const { VITE_HIDE_HOME } = import.meta.env;

router.beforeEach((to : ToRouteType, _from, next) => {
	if (to.meta?.keepAlive) {
		handleAliveRoute(to, "add");
		// 页面整体刷新和点击标签页刷新
		if (_from.name === undefined || _from.name === "Redirect") {
			handleAliveRoute(to);
		}
	}
	const userInfo = storageLocal().getItem<DataInfo<number>>(userKey);
	NProgress.start();
	const externalLink = isUrl(to?.name as string);
	if (!externalLink) {
		to.matched.some(item => {
			if (!item.meta.title) return "";
			const Title = getConfig().Title;
			if (Title) document.title = `${item.meta.title} | ${Title}`;
			else document.title = item.meta.title as string;
		});
	}
	/** 如果已经登录并存在登录信息后不能跳转到路由白名单，而是继续保持在当前页面 */
	function toCorrectRoute() {
		whiteList.includes(to.fullPath) ? next(_from.fullPath) : next();
	}
	if (Cookies.get(multipleTabsKey) && userInfo) {
		// 无权限跳转403页面
		if (to.meta?.roles && !isOneOfArray(to.meta?.roles, userInfo?.roles)) {
			next({ path: "/error/403" });
		}
		// 开启隐藏首页后在浏览器地址栏手动输入首页welcome路由则跳转到404页面
		if (VITE_HIDE_HOME === "true" && to.fullPath === "/welcome") {
			next({ path: "/error/404" });
		}
		if (_from?.name) {
			// name为超链接
			if (externalLink) {
				openLink(to?.name as string);
				NProgress.done();
			} else {
				toCorrectRoute();
			}
		} else {
			
			// 刷新
			if (
				usePermissionStoreHook().wholeMenus.length === 0 &&
				to.path !== "/login"
			) {
				initRouter().then((router : Router) => {
					if (!useMultiTagsStoreHook().getMultiTagsCache) {
						const { path } = to;
						
						const route = findRouteByPath(
							path,
							router.options.routes[0].children
						);
						getTopMenu(true);
						// query、params模式路由传参数的标签页不在此处处理
						if (route && route.meta?.title) {
							if (isAllEmpty(route.parentId) && route.meta?.backstage) {
								// 此处为动态顶级路由（目录）
								const { path, name, meta } = route.children[0];
								useMultiTagsStoreHook().handleTags("push", {
									path,
									name,
									meta
								});
							} else {
								const { path, name, meta } = route;
								useMultiTagsStoreHook().handleTags("push", {
									path,
									name,
									meta
								});
							}
						}
					}
					// 确保动态路由完全加入路由列表并且不影响静态路由（注意：动态路由刷新时router.beforeEach可能会触发两次，第一次触发动态路由还未完全添加，第二次动态路由才完全添加到路由列表，如果需要在router.beforeEach做一些判断可以在to.name存在的条件下去判断，这样就只会触发一次）
					if (isAllEmpty(to.name)) router.push(to.fullPath);
				});
			}
			toCorrectRoute();
		}
	} else {
		if (to.path !== "/login") {
			if (whiteList.indexOf(to.path) !== -1) {
				next();
			} else {
				removeToken();
				next({ path: "/login" });
			}
		} else {
			next();
		}
	}
});

router.afterEach(() => {
	NProgress.done();
});
export default router;